package com.io.example.demoparent.mq.topic;


import com.io.example.demoparent.mq.util.RabbitMQUtil;
import com.rabbitmq.client.Channel;

import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.TimeoutException;

/***
 *  主题模式
 */
public class EmitLogTopic {

    private static final String EXCHANGE_NAME = "topic_logs";

    public static void main(String[] args) throws IOException, TimeoutException {
        createProduct();
    }


    public static void createProduct() throws IOException, TimeoutException {
                Channel channel = RabbitMQUtil.getRabbitChannel( );
                channel.exchangeDeclare(EXCHANGE_NAME, "topic");
                /*
                 * Q1-->绑定的是
                 *	中间带 orange 带 3 个单词的字符串(*.orange.*)
                 * Q2-->绑定的是
                 *	最后一个单词是 rabbit 的 3 个单词(*.*.rabbit)
                 *	第一个单词是 lazy 的多个单词(lazy.#)
                 *
                 */
                Map<String, String> bindingKeyMap = new HashMap<>( );
                bindingKeyMap.put("quick.orange.rabbit", "被队列 Q1Q2 接收到");
                bindingKeyMap.put("lazy.orange.elephant", "被队列 Q1Q2 接收到");
                bindingKeyMap.put("quick.orange.fox", "被队列 Q1 接收到");
                bindingKeyMap.put("lazy.brown.fox", "被队列 Q2 接收到");
                bindingKeyMap.put("lazy.pink.rabbit", "虽然满足两个绑定但只被队列 Q2 接收一次");
                bindingKeyMap.put("quick.brown.fox", "不匹配任何绑定不会被任何队列接收到会被丢弃");
                bindingKeyMap.put("quick.orange.male.rabbit", "是四个单词不匹配任何绑定会被丢弃");
                bindingKeyMap.put("lazy.orange.male.rabbit", "是四个单词但匹配    Q2");

                for (Map.Entry<String, String> bindingKeyEntry : bindingKeyMap.entrySet( )) {
                    String bindingKey = bindingKeyEntry.getKey( );
                    String message = bindingKeyEntry.getValue( );
                    channel.basicPublish(EXCHANGE_NAME, bindingKey, null, message.getBytes(StandardCharsets.UTF_8));
                    System.out.println("生产者发出消息" + message);
                }

            }

}